Gonatopus ruens ( Olmi, 1984 )

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619 : 437

17. Gonatopus ruens ( Olmi, 1984)

(Figs 173 D, 174 I, M, 176 C)

Paragonatopus rufus Olmi 1979: 219 (preoccupied by Pseudogonatopus rufus Fouts 1935 ).

Pseudogonatopus ruens Olmi 1984: 1228 ; 2006: 45.

Gonatopus ruens (Olmi) : Olmi 2009b: 454.

Description. ♀. Apterous; body length 2.8–3.1 mm. Head reddish, except ocellar region brownish and anterior region of frons yellow-reddish; antenna brown, except antennomeres 1–3 yellow; mesosoma reddish; petiole black; metasoma black, except tergite 1 reddish; legs yellow-reddish, except clubs of femora brown. Head excavated, shiny, smooth, granulate; area in front of anterior ocellus unsculptured; occiput granulate. Palpal formula 2/2, or 3/2, or 4/2. Pronotum dull, granulate, crossed by strong transverse impression. Mesoscutum dull, with some longitudinal striae, without lateral pointed apophyses (Fig. 174I). Metanotum flat, transversely striate, as long as mesoscutum, with sides rounded (Fig. 174I). Metapectal-propodeal disc dull, without track of median longitudinal furrow; propodeal declivity transversely striate. Meso-metapleural suture obsolete. Mesopleuron and metapleuron transversely striate. Protarsomeres in following proportions: 9:2:3:6:10. Enlarged claw ( Fig. 176C ) with one large subapical tooth and one row of five lamellae. Protarsomere 5 ( Fig. 176C ) with two rows of 15–17 lamellae; apex with 5–8 lamellae. Tibial spurs 1/0/1.

♂ (Fig. 174M): fully winged; body length 2.5 mm. Head black, except mandible yellow; antenna brown; me- sosoma black; metasoma brown; legs yellow. Antennomeres in following proportions: 5.5:5.5:12:11:10:10:10:10: 9:13; antennomere 3 more than 4 × as long as broad (4.8). Head dull, setose, granulate; frontal line absent between antennal toruli; occipital carina absent; POL = 8; OL = 4; OOL = 3; greatest breadth of lateral ocelli about as long as OOL. Palpal formula 2/2. Mesoscutum setose, granulate. Notauli complete, posteriorly separated; minimum distance between notauli shorter than greatest breadth of lateral ocelli (2:3). Mesoscutellum and metanotum setose, granulate. Metapectal-propodeal disc dull, with longitudinal median furrow; propodeal declivity reticulate rugose; top of metapectal-propodeal disc with short irregular keels. Forewing hyaline, without dark transverse bands. Dorsal process of paramere (Fig. 173D) long and broad, distally sharp. Tibial spurs 1/1/2.

Material examined. Types: ♀ holotype: NAMIBIA: Swakopmund , 26–30.I.1972, Southern African Expedi- tion, B.M. 1972 ( NHMUK) . Paratypes: same locality label as holotype , 7♀♀, 1♂ ( NHMUK) , 2♀♀ ( AMNH) .

Hosts. Unknown.

Distribution. Namibia.

Remarks. The record from South Africa (Grahamstown) by Olmi (1984) is an error; it is in fact a specimen of Gonatopus amoenus Olmi (see account of this species above). The ♀ from Grahamstown has a track of a median longitudinal furrow on the top of metapectal-propodeal disc, which correctly assigns this specimen to the latter species.

Figures

FIGURE 173. ♂ genitalia of Gonatopus species. A: G. festivus Olmi, paratype. B: G. harteni (Olmi), paratype. C: G. niassensis Olmi, paratype. D: G. ruens (Olmi), paratype. E: G. similis Brues, ♂ from La Reunion. F: G. vannoorti Olmi, paratype. Scale bar: A, F: 0.11 mm; B: 0.08 mm; C: 0.06 mm; D: 0.09 mm; E: 0.05 mm.

FIGURE 174. Gonatopus species of group 2. A, B: G. fisheri Olmi, mesosoma of ♀ holotype in dorsal (A) and lateral (B) view. C: G. harteni (Olmi), head in frontal view of ♂ paratype. D–F: G. jacksoni Olmi, ♀ holotype: head in frontal view (D); mesosoma in dorsal (E) and lateral (F) view. G, H: G. perkinsiellavorus Benoit, ♀ holotype: mesosoma in dorsal (G) and lateral (H) view. I, M: G. ruens (Olmi): mesosoma of ♀ holotype in dorsal view (I); ♂ paratype in dorsal view (M). J–M: G. similis Brues: mesosoma of ♀ holotype in dorsal (J) and lateral (K) view; head of ♀ holotype in frontal view (L). Scale bar: A, B, F: 0.75 mm; C: 0.10 mm; D: 0.33 mm; E, I: 0.77 mm; G, H: 0.87 mm; J, K: 0.67 mm; L: 0.23 mm; M: 1.15 mm.

FIGURE 176. Chelae of Gonatopus species holotypes. A: G. pilosoides Olmi. B: G. polli (Benoit). C: G. ruens (Olmi). D: G. similis Brues. E: G. spiracularis (Benoit). F: G. vannoorti Olmi. Scale bar: A: 0.12 mm; B: 0.07 mm; C: 0.08 mm; D, F: 0.06 mm; E: 0.10 mm.